[OpenAFS] Encryption

[Michael Robokoff]

I am looking for information on open-afs and what if any encryption 
it supports. For example:

Can you set open-afs so all data written to the disk is encrypted? 

Also:

Can you set open-afs so it encrypts data as it is transmitted between
client and server?

And if these are options can the be set at different levels like at
the Cell level, Sever level or Volume level?

Any information on these issues will be greatly appreciated.

--Mike